Foot throttle



NOV. 18, 1930. P. A. GIANERA FOOT THROTTLE Filed July 2; 1928 RA. 0 idherq A torne s' Patented Nov. 18, 1930 2 UNITED sTATe s OFFICE rn'rnn A. GI'ANEBA; w-Tommca mnmm roor'rnno'rrnn i 7 Application filed July 2, ms. SerialkNo. 289,995.

My invention is a foot throttle particularly adapted-for automobiles, to control the internal combustion engine.-

ti'on ofa foot throttle which may beposi tioned on the inclined portion of thedriv-ers.

compartment ofan automobile, and in which thethrottle may becontrolle'd by a straight pressure movement downwardly of the foot or thethrottle may be controlled by turning the foot slightly to one side, the movement in one direction opening the throttle'and in the reverse movement closing the throttle.

'Another object. of-my invention is a foot throttle in whichthe pedal for-actuating thethrottle by adirect downward movement of the foot is interconnected with the pedal shifted laterally by the foot andthereby controlling the throttle so thatwithoutshifting 29 the foot that the throttle maybe operated either by a straight downward pressure or" alateral pivoting movement ofthe foot.

Another object of. my invention in con-. nection with the lateral'foot movement con-V trol is a retaining device'holding the foot;

throttle in the position to Which it has. been movedhp l Inconstructing my. inventionI utilize the usual throttle stem or rod WlliCllGXiDBIIClS upwardly through the floor of the vehicle. Th s rod is engaged. at its upper endby ap-ivoted under pedal which pedal operates by a. direct upward and downward movement of thefoot thrusting the rod downwardly and allowing itsreturn by spring action, Mountedon the under pedal there is an upper pedal having.

7 a lateral swinging movement in reference. to theunder pedal, and by a cam construction when the upper pedal is swung to one'side the lower pedal isdepressed thus opening the throttle and on the reversexinoveinent the under pedal rises due tothe spring reaction closing the throttle. i 1' if desired. 7

. My invention is 'panying drawings, in'whichz- Fig. 1 is a plan View of my inventiontaken inothe direction of the-arrowl of Fig.2,

hold the upper pedal in the shifted position t V 7 the arrows, An ob'ect of myinventionis the construc- -I also employ interconnecting ratchet-std illustrated in the accom Fig. 2 is a longitudinalsection on the line 2-2 ofFig. 1 in. the direction of Fig. 3 is a detail perspective: view of the uppen side of a portion of the under pedal,

F ig.- 4: is a perspective view of theunder j 7 side o fa portion of the upper. pedal,

Fig. 5] is a perspective View of a sliding ratchet-J V "f In the construction the floor of the'drivers compartment is indicated by the numeral 11 having a plate 12 mounted thereon. There is a sleeve13 extending through the' floor and if desired this may be continued, upwardly above the, plate as indicated at114. 1 The V throttlerod or stem 15 slides-in this sleeve and has a head or button 16 on the top against which the spring. 17 presses. These features may be standard'iii'desired,

hinge 18 to whichishingedly connected the under pedal 19. Thispedal isin the form of astrap" and has a plate 20 onthe outer end engaging the head 16 of the throttle rod. This'strap is provided with a'jcircular recess 21 and with an arcuate depression 22 which is cam shapedand concentric with-the perforae to the perforation 27 the cam fitting inthe 0 arcuate depression 22 of the under pedal.

The upper pedal is provided with-a foot plate 31 having inturned flanges 32 to engage the edg s of the sole of the operators shoe. 5 I

The inner surfaceofthe recess 28-ispro vided with ratchet teeth 33 whichengage the V friction teeth Men the head35 of a plunger 36 which is slidable on a squared section 37*, of the pin 26, being pressed-upwardly by a spring 38 which engagesunderneath the The end or" the plate is provided-with a 70 Q When the operator depresses the pedals, pressing on the foot plate 31, both the upper 7 1 tions of Fig. 1, the cam 30 on the upper pedal;

' co-actingwith the arcuate depressed cam 22* causes the lower pedal to be thrust downwardly while the upper pedal-thrusts to one side,

head 35 and is seated in the recess 21 of the lower pedal.

The friction teeth 34; are arranged in a radial manner extending outwardly from the center. These teeth are so constructed as to interengageand by the spring tend to prevent turningfmotion in either direction. However when side pressure ineither direction is uti-- lized on the upper pedal, it causes the teeth of the friction device to slip from one notch to the other; the movable'device' 34 causing the compression of the spring 38 in this action and the spring together with the friction device are sufficient to holdthe upper pedal.

when it is moved transversely to the lower pedal. -The manner of operation and'functioning of my invention is substantially as follows:

and the lower pedalsmove together, swiveling on the hinge 18 which causes a depression of the throttle rod 15 niuch in the ordinary manner, and when the foot is lifted the spring '17 returns the pedals to their normal position.

If, however, instead of depressing the foot the operator shifts or twists the foot sideways as indicated bythe full and dotted line posithisupper pedal swiveling onthe upper end of the pin 26. This, action,-therefore, causes thedepression of the throttle-rod'15 opening,

the throttle'of theengine.

' In this swiveling or pivoting-movement the ratchet head 35 is heldstationary on account of being mounted on thesduare'd section of the pin-Qfiahd as thisispressed upwardlyagainst theratche tteetlr 33 inthe recess 28* the upperpedal is maintained in the shifted: position even'after" the foot isremoved"fr0m* the foot plate. This" action allows opening of the throttle by' the foot and leaving the throttle in such open 'position after the foot is removed. In order to close the throttle it is necessary in'this instance to 'reinsert the footon the foot plate and sliift'the foot from tlie dfotted to the' full line position of Fig; 1

without "depressing the'foot, .Such actionon transverse to that iof -the-under pedal, and

' means actuated by the upper pedal to operate the lower pedal to actuate the throttle.

2. A foot throttle, a first pedal having means to operate a throttle rod by a movement in one direction, a second pedal having a movement in the same direction as the first pedal and also at an angle thereto, and means co-operating between the pedals on'the-angular. movement to operate the first pedal and hence the throttle rod. I

3: A foot"throttleic'omprising in combination-.a slidable throttle rod, a pivoted under pedal connected therewith to operate the throttle byjan. angular movement of the .un-

der pedal in one direction, an upper pedal 'mounted on theunderfpedal having-an angular movement in-a direction substantially at co operative means between the under and tlwupper pedals to actuate the under pedal onthe said angular movement of the upper pedal: 1 4. A

under pedal, and co-operating cams on said pedalsto operate the under pedal onv a lat-Ya eral'movement of th'e'upper-pedal.

'5. A foot throttleas claimediin claims4, anz

interconnecting device between the said pedals to retainthe upper pedal in the laterally shifted position) i -6. A foot throttle havinganaunder pedal pivotally connected to:a floor board=at .one-

end, a 'slidable throttle rod engaging the other end of said-pedal a pin extendingup-s' wardly from the floor oard andvthrougha perforation in the under pedal, an: upper pedal pivotally mounted on the pin, and'in teren'gaging cams on the said:- pedals todepress'the under pedal on a'lateral movement; ofthe upper pedah a 71 A foot throttle as claimed in claim- 6, a friction means-mounted on the upperezpe'dal a second friction means slidable tantamotatable on the saidpin'engaging'therewith,

and means'to retain said ratchets'in engagement.

foot throttle having an under pedal pivotally mounted atone endiand having, means" engaging the other end: tooperate a. throttle, an upper pedal mounted; on a pivot; extending through' the under-pedalkand Latiright anglesto the pivotal: connection ofvthe'.

. right angles to that=of the first pedal, and a? SQA footthrottlecomprisingjin combina-t tion a plate 'adaptably mounted on v a vehicle floor and; having an under pedal pivotally connected thereto, a slidable throttle rod on- %ging the under pedal, a pin connected to t e said plate and extendingthrougha per-e foration in the under, pedal, an upper pedal pivotally mounted 'on the sai d'pin, interengaging cams between the said pedalsstoyde-l press the under pedal: on a lateral; movement of the upper pedal, a throttle controlling de vice operated by the movement of the under pedal, said pedals having complementary:

sockets having a friction'means, a complemental-y second friction means slidable on a pin but nonrotatable thereon, and a spring thrusting on said latterfriction means.*

In testimony whereof I have signed my name to this specification.

r 'P. A. GIANERA. 

